{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "203752",
    "entityType": "User",
    "nonce": "0x9ddc917b484e0c9c71fd2d357ea2d12fe99a2d8cf40dafd7b29acd24ff41611b",
    "signature": "0xd340949931963e867b131b23bc067146cc65a9184f18e194d3b34c7ff5e0505b57a891cff5a370506f746074a47bd102641233dc439a96fa993f7646875cd1df1c",
    "signer": "0xfE8b7901289A70702AC15CcB11911b872E54e80D",
    "userId": "540022120"
  }
}